Mortise door-lock.



D. W. WEED.

MORTISE DOOR. LOCK. APPLICATION FILED JUNE 20, 1910.

Patented Sept.27,1910.

OFICE.

DAVID 'WALIER IVEED. OF STAMFORD, CONNECTICUT, ASSIGNUR T EAGLE LOCK 00.,

OF TERRYVILLE,

CONNECTICUT, A CORPORATION.

IVIORTISE DOOR-LOCK.

To all whom tt may concern:

Be it known that I, DAVID IVALTER \Vnno, a citizen of the United States, residing at Stamford, in the county of Fairfield and State of Connecticut, have invented a new and useful Improvement in Mortise Door- Locks; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure l a view in elevation of a mortise door-lock constructed in accordance with my invention, with the cover removed. Fig. 2 a view of the lock in longitudinal section on an enlarged scale and looking upward in the direction of the arrows. Fig. 3 a detached view in inside elevation of the lock-case cover which is shown on the scale of Fig. 1. Fig. 4 a perspective view of the movable block or shoe employed to hold the cylinder against rotation. Fig. 5 a detached view in side elevation of the thrust-plate.

My invention relates to an improvement in mortise door-locks, the object being to provide simple and convenient means for holding the cylinder of such a lock against rotation and to enable the lock to be converted from a lock for a right hand door to a lock for a left hand door, and vice versa, as well as to permit two cylinders, if desired, to be used with one lock.

With these ends in view my invention consists in a mortise door-lock having certain details of construction and combinations of parts as will be hereinafter described and pointed out in the claim.

For the illustration of my invention I have shown it as applied to a lock like that shown and described in my pending application, Serial N 0. 548,460 filed March 10, 1910, of which appllcation this present application is a division.

For holding the pin-tumbler lock cylinder 2 against rotation in the threaded opening 3 in the case 4, or in the corresponding opening 5 in the cover 6, according as it is desired to use the lock on a right hand door or on a left hand door, I employ a movable block or shoe 7 formed upon opposite sides with parallel fingers 8 extending in the same direction, corresponding in length and hav- Specification" of Letters Patent.

Patented Sept. 27, 1910. Divided and this application filed June 20,

Serial No. 567,885.

ing their projecting ends pointed as at 9 for entrance into notches 10 located diametrically opposite each other at the inner end of the cylinder 2, as clearly shown in Fig. 1. The outer faces of the arms 8 are rounded and they are entered into corresponding grooves 11 respectively formed at points opposite each other in the inner face of the cover 6, and in the inner face of the bottom of the case 4 as shown in Figs. 2 and 3, the block or shoe 7 being made wide enough so that when the arms 8 are entered into the grooves 11 the block will be positioned in the case with freedom to move longitudinally therein within narrow limits. The said block or shoe 7 is formed with a threaded opening 12 arranged in line with the arms 8 and receiving the threaded stem 13 of a screw shank 14 the outer end of which passes through a hole 15 in the selvage 16 which is covered by the brass scalp 17. The said shank 14 is formed near its outer end with an annular groove 18 receiving a thrust plate 19 having a slot 20 adapting it to be slid over the screw-shank 14 so as to enter the annular groove 18 thereof, the beveled inner end 21 of the plate 19 being entered into a notch 22 in the case 4 and the beveled outer end 23 of the said plate being entered into a notch 24 in the cover 6 of the case.

By inserting a screw-driver into the notch 25 of the screw-shank 14, the threaded stem 13 may be turned so as to advance the block 7 toward the cylinder 2 so as to lock the same in place by the entrance of the pointed end 9 of one of the arms 8 of the block 7 into one or the other of the two notches 10 formed in the inner end of the cylinder, the arm 8 brought into play depending upon whether the cylinder is screwed into the threaded hole 3 in the case 4 or into the threaded hole 5 in the cover 6. When the screw-shank 14 is turned in the opposite direction, it will draw the head 7 away from the cylinder 2 and permit the same to be turned, the plate 19 acting as a thrust-plate for the screw 13.

Under this construction, the liability of breaking the screw in making the adjust-- ments required in setting the cylinder is reduced to the minimum.

As shown, the bolt 26 carries a wedgeshaped talon 27 having a centrally arranged cam-slot 28 which receives the tongue 29 of of the lock-case, and a thrust-plate slotted to receive the screw and held in place against the inner face of the selvage plate of the lock-case and by the cover of the look.

In testimony whereof, I have signed this specification in the presence of two subscrib ing witnesses.

DAVID VALTER \VEED.

Vitnesses OTIS B. HoUGH, HARRY C. CLoE.

a cam 30 fastened by screws 31 to the inner end of the plug 32 of pin-tumbler lock mounted in the cylinder 2 in the usual manner.

I claim 2- In a mortise door-lock, the combination with the case thereof, of a cylinder lock the cylinder of which is formed with positioning-notches, a double pointed positioning shoe for engagement with the cylinder to hold the same against rotation in the case, a screw entering the said shoe and passing at its outer end through a hole in the selvage 

